摘要
以乌江梯级水库中的洪家渡水库、东风水库、乌江渡水库为研究对象,通过数值计算得到上游3 d、5 d、7 d洪量下不同的水库水温分层结构,分析上游不同洪量对下游不同库容的水库水温分层结构的影响。结果表明:当洪水历时相同时,若洪水量增量相同,水库的库容越大,洪水对水温的分层结构影响越小;若水库库容相同,洪水量越小,洪水对水温的分层结构影响越小。当一次洪水量相同时,若水库库容相同,洪水历时越长,洪水对水温的分层结构影响越小。
The different temperature hierarchy structures of the Hongjiadu Reservoir, Dongfeng Reservoir, and Wujiangdu Reservoir of the Wujiang cascade reservoirs were obtained by numerical calculation with upstream floods that lasted three, five, and seven days. The effects of different upstream flood flows on the temperature hierarchy structures of reservoirs with different storage capacities were analyzed. The research results show that, with the same flood duration, when the flood flow increase remained identical, the impact on the reservoir temperature hierarchy was smaller with a greater storage capacity, and, when the storage capacities of the reservoirs remained identical, the impact on the reservoir temperature hierarchy was smaller with a smaller flood flow. With the same flood flow, when the storage capacities of the reservoirs remained identical, the impact on the reservoir temperature hierarchy was smaller with a longer flood duration.
出处
《水资源保护》
CAS
2013年第5期38-44,共7页
Water Resources Protection
基金
国家自然科学基金(51179053)
国家科技重大专项(2012ZX07506-006-05
2012ZX07506-007-01)
关键词
洪水量
洪水历时
水温分层
乌江水库
flood flow
flood duration
temperature hierarchy
Wujiang Reservoir
